Business is about sales. From a business point of view, your mission is to make a product that people want, and to sell a lot of it. The drive to sell a lot is what motivates cleverness in product design, efficiency in production, and consumer-friendly low prices.
But in general, it’s hard to tell a businessperson, with a straight face, that they’re ethically obligated not to sell so much stuff. After all, that’s their function.
There are, however, exceptions, cases in which selling more is so obviously socially destructive that it becomes morally mandatory to try to maybe sell a little less.
See, for example, this must-read piece by Mike Mariani in the Pacific Standard, called “Poison Pill: How the American opiate epidemic was started by one pharmaceutical company.” It’s the story of how Purdue Pharma, maker of the opioid analgesic Oxycontin, used innovative marketing strategies to turn the painkiller into a $100-million commercial success, and how the drug not coincidentally became the darling of millions of addicts. Part of that story is about unethical (and illegal) marketing methods. But the question of methods can’t be separated entirely from the question of goals. And the goal, here, is sales — in particular, maximizing sales. But when you maximize sales of a drug like Oxy, you inevitably encourage a greater amount of “leakage” of the drug from the stream of legitimate uses into the realm of addiction and criminality.